import struct
a=b'T\x00\x00\x00\x05\x00\x00\x00 zzz,zz'

b = a[4:8]
s=struct.unpack('I',b)
print(s[0])
b1,b2 = a.split(b',')
print(b2)
print(len(b2))
c = a[9:]
print(b)
print(type(a))


print(type(a))
print(a)